EPA-verified MPG for all 14 variants (2015–2026)
G550 by model year — click a row to jump to that year
| Year | Best MPG | Avg MPG | Variants |
|---|---|---|---|
| 2026 | 18 MPG | 18 MPG | 1 |
| 2025 | 18 MPG | 18 MPG | 1 |
| 2024 | 14 MPG | 14 MPG | 1 |
| 2023 | 14 MPG | 14 MPG | 1 |
| 2022 | 16 MPG | 16 MPG | 1 |
| 2021 | 18 MPG | 18 MPG | 1 |
| 2020 | 14 MPG | 14 MPG | 1 |
| 2019 | 14 MPG | 14 MPG | 1 |
| 2018 | 13 MPG | 12 MPG | 2 |
| 2017 | 13 MPG | 12 MPG | 2 |
| 2016 | 13 MPG | 13 MPG | 1 |
| 2015 | 13 MPG | 13 MPG | 1 |